ASTMA123A123MStandardSpecificationforZincVIP专享

Designation: A 123/A 123M – 02Standard Specification forZinc (Hot-Dip Galvanized) Coatings on Iron and SteelProducts1This standard is issued under the fixed designation A 123/A 123M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers the requirements for zinccoating (galvanizing) by the hot-dip process on iron and steelproducts made from rolled pressed and forged shapes, castings,plates, bars, and strips.1.2 This specification covers both unfabricated products andfabricated products, for example, assembled steel products,structural steel fabrications, large tubes already bent or weldedbefore galvanizing, and wire work fabricated from uncoatedsteel wire. This specification also covers steel forgings and ironcastings incorporated into pieces fabricated before galvanizingor which are too large to be centrifuged (or otherwise handledto remove excess galvanizing bath metal).NOTE 1—This specification covers those products previously addressedin Specifications A 123-78 and A 386-78.1.3 This specification does not apply to wire, pipe, tube, orsteel sheet which is galvanized on specialized or continuouslines, or to steel less than 22 gage (0.0299 in.) [0.76 mm] thick.1.4 The galvanizing of hardware items that are to becentrifuged or otherwise handled to remove excess zinc (suchas bolts and similar threaded fasteners, castings and rolled,pressed and forged items) shall be ...